fg.angol A.i. general 1dia

Treatment of Angle class I.General anomalies

Outline

• Deep bite• Open bite• Transversal anomalies Lateral cross bite, Scissor bite,

Crowding

Deep bite

• Dento alveolarOver eruption of incisorsLack of laterals eruption Multiple extraction

• SkeletalUsually together with Angle II/2

Analysis of the cephalogram

• ML-NL angle• ML-NSL angle• NL-NSL angle• Gonion angle

Treatment of deep bite

• Intrusion of incisors• Extrusion of molars• Appliances:Multiband or removable appliance

Utility ív

Treatment with fixed appliance

Deep bite (Angle II/2)

Passive plate with bite raising block in the front

Open bite

• Anterior• LateralUnilateral Bilateral

• Dento alveolarHabitual dysfunction

• SkeletalVertical development of the

mandible

Analysis of the cephalogram

• ML-NL angle• ML-NSL angle• NL-NSL angle• Gonion angle

Typical skeletal and dentoalveolar open bite

Treatment of open bite• Elimination of the

causes• Correction of the

vertical relation between the upper and lower jaws

• Appliances:Oral screenActivatorFixed appliance with

intermaxillary elastics

oral screen

ORAL SCREEN

Az aktivátor

• Andresen• Häupl—funkciós

állcsontortopédia

• Merev akrilátblokk• Labiálív• Öntött kapcsok

• Aktiválás

• vertikális irányú becsiszolás

Dentoalveolar open bite due to habitual dysfunction Treatment with tongue cribs

Tongue trust swallowing

Treatment of the open bite with fixed appliance

Treatment of the open bite with fixed appliance

Tongue trust swallowing

Utility arch

Transversal anomalies Lateral cross bite

• Unilateral• Bilateral• Dentoalveolar• Skeletal

Lateral scissorsLateral cross bite

Analysis of the model

• Measurement of the indexes

• Analysis of the relation between the apical and the coronal base

Pont- and the Schmuth- index

Treatment alternatives of lateral cross bite

• In the deciduas dentition grinding and functional training (bite exercise)

• Functional appliance with screw

• Frankel I • Active plate• Quad-helix• Hyrax screw

Hasund-féle Hansa készülék:

• --felső lemezrész tágító csavarral, torqueáló-rugóval, Adams-kapoccsal

• Alsó lemezke • -- speciális rugóval,• -- ajakráccsal

• --Buccális pajzs• --pelották• --transzpalatinális ív• --segédrugók

• Periosteum viszkoelasztikus elhúzódása

Frankel appliance

Upper and lower active plates

Unilateral cross biteforced bite

Transversal widening

Treatment of scissors bite

• Closing the upper arch• Expanding the lower

arch• Appliances: multiband,

activator (with screw) active plate

Transversal anomalies Crowding

• Primer: Size of tooth arch Size of teeth • Secounder: Early deciduous extraction and its

consequence • Tertier: Eruption of the wisdom

Crowding

• Primary ⇐ Jaw size ⇒ Tooth dimension• Secondary ⇐ Early extraction of deciduous• Tertiary ⇐ Third molar

Treatment of crowding

• Prevention• Space creation

Transversal and or sagittal widening (help: Pont index )

• Tooth material reduction

extraction or stripping of enamel(help: Bolton analysis)

Stripping of enamel

Hyrax

Treatment of crowding

• Prevention• Provision of space

Pont index sagittal and or transversal expansion)

• Reduction of tooth material (extraction

stripping)

Non extraction treatment

• Crowding• Large scale deep bite• (Angle II/1.)

persistant decidous

After the treatment

After the treatment

Extraction treatment• Consideration : Expansion ⇔ extraction • The measure of the narrow: 0-5mm, 5-

10mm, 10-• Consideration of the protrusion• Consideration of the vertical relation

systemic extraction

• Extraction of deciduous canines

• Extraction of first deciduous molars

• Extraction of first premolar